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Shares in insurance giant AIA slumped 3pc in Hong Kong while HSBC stock climbed as much as 1.8pc in London today on the news that Tucker was resigning as chief executive of the Asian business to take charge of the British bank’s board.

Investors in AIA have good reason to mourn the departure of the 59-year-old, a former boss of FTSE 100 giant Prudential.

Since leaving the Pru to steer AIA through its stock market spin-off from ailing American International Group (AIG) in 2010, shares in the Asian company have leapt by more than 160pc under Tucker’s...